Attachment for circular-saw machines.



APPLICATION FILED OGT.31,1910.

Patented June 13, 1911.

iiiUl 'glnucnfoz /DEEFH VV. OLIVE E= a (+1 macs W o the art'to which it appe-rtai-ns UNITED- STATES PATENT orrron.

JOSEPH'W. OIJIVER, 0F GRAND RAPIDS, MICHIGAN, ASSIGNOR 'IO OLIVER MACHINERY COMPANY, OF GRAND RAPIDS, MICHIGAN, A CORPORATION OF MICHIGAN.

ATTACHMENT FOR CIRCULAR-SAW MACHINES Specification of Letters Patent. Patented June 13, 191-1.

Application filed October 31, 1910. Serial No. 588,911.

To all'whom it may concern:

Be it-known that I, JOSEPH W. OLIVER, a citizen of the' United States of America, re-

siding at Grand Rapids, in the county of Kent and State of Michigan, have invented full, clear, and exact description of the in vention, such as will enable others skilled in to make and use the same.

My invention relates to improvements in attachments for circular saw machines, and its object is to provide a device in the nature of a combined saw guard and splitter blade adapted and arranged to be attached to a circular saw machine having a cut-otf and a rip saw alternately adjusted to operative position, and to provide the device with various new and useful features hereinafter more fully described and particularly pointed out in the claims.

' My invention consists essentially 'of av circular saw machine having a rotative body I carr in saw arbors arran ed )arallel and at opposite sides of its axis, one of which arborscarries a cut-off saw and the other arbor carries a rip saw wlth the saws arranged 1n the same plane, and my device comprises an adjustable segment concentric with the axis of each arbor, a spreader or splitter blade carried by said segment tending concentric with the saw and in the same plane, a saw guard pivotally attached to the blade, and means for adjusting the guard about the pivot and readily detaching the. same from the blade, as will more fully appear by reference to the accompanying drawings, in which:

" Figure-1 is a side elei ation of a sawing machine having my device applied thereto; Fig. 2 an elevationat right angles to Fig. 1 with parts broken away to show the construction; Fig. 3- a slightly enlarged detail in side'clevation showing more fully my device; and Fig. 4 a sectional detail on the line44c0f-Fig. 3. l

Like numbers refer to like parts in" all of the figures.

1 represents a saw table; 2 saw arbors arranged parallel and equidistant from the axis of a body 3 carrying the same, and adjustable about its axis to bring the saws alternately into operative position. 4: is a disk shaped head on the body 3 forming a portion of one wall of the saw dust spout ll. 5, 5 are respectively a cut-off saw and a rip saw mounted on the respective arbo rs 2. So far the device described is an ordinary well known sawing machine and need not be further described.

. Concentric with the axis of each arbor are slotted segments 6 slidably mounted on suitable raised segmental seats 9 on the head 4 justable longitudinally and held concentric to the arbors by means of a stop pin 15 anda clamping bolt 10 slidably engaging the segment and extending through the slot therein. These segments are preferably arranged withtheir outer surfaces substantially in the plane of the inner surfaces of the saws, and to the outer end of each segment is secured a splitter blade 7 of substantially the same thickness as the respective saws and in the plane thereof. This blade is concentric with the axis of the saw and partially surrounds the same and serves to traverse the saw kerf to guide the work and prevent its closing upon the saw. One end of this blade is attached to the end of the segment 6 and extends therefrom through the saw slot in the table when the respective saw is in operative position. In the upper end of this blade is a key hole slot 12 having 8 in which the pin is in erted. An adjusting screw 14 is provided in the guard 8 engaging the end of the blade 7 between the pivot and the free end of the guard, whereby the said end of the guard may be adjusted toward or away from the table 1. When these saws are shifted, this guard is detached from the blade and the latter will then swing through the slot in the table to a position beneath the table and the other blade will come up through the slot andtake its place in the same position that the other blade occupied. These segments and. blades are thus reversible simultaneously with the respective saws and the guard 8 quickly attached anddetached to either one as occasion may require. I

What I claimis:-

1'. In combination with a saw machine having a. rotatable body carrying saw arbors; a table having a slot therein and saws on .of the rotative body. These segments aread- 'the arbors alternately adjusted to project through the slot; a splitter blade attached -to said body adjacent to each saw and in' the planethereof and adapted to project through said slot, and a detachable saw '1 guard adapted to be alternately attached to "said blades.

2; In combination with a saw machine having ajrotatable body carrying saw arborsarranged parallel and spaced apart and s'aws mounted thereon; an adjustable segment mounted onsaid body concentric with a saw arbor, a segmental splitter blade attached to said segment and in the plane of the saw, and a detachablesaw guard attached to the end of said blade.

3. In combination wlth a saw machine having a rotatable body carrying parallel saw arbors at opposite sides of its axis and circular saws'onsaid arbors, longitudinally adjustable segments on said body concentric with the arbors, a splitter blade attached to each segment at one end and provided at the other end with an open end key hole slot,

and a saw guard having a flat pin to engage the slot and detachably-pivot the guard to the blade.

L44; In combination with a saw machine having arotatable body provided with a disk shaped head and carrying saw arbors spaced. apart and circular saws mounted on the arbors; segmental seats on the heads concentric with the' arbors, slotted segments mounted on the seats and longitudinally adjustable thereon, a stop in and a clamping screw extendin throng the slot of each segment, a splitter blade attached at one end to each segment and extending concen- .slotted segments mounted on the head concentric with the respective arbor and saw, a pin and clamping bolt extending through each segment into the said head, a splitter blade attached to each segment at one endextending concentric with the respective saw and provided with an open key hole slot at the other end, and a saw guard having a flat pin to enter said key hole slots and inter-, changeably and pivotally attach the guard.

to the blades, and a screw in the guard to engage a blade and adjust the guard.

In testimony whereof I affix my signature of two witnesses.

JOSEPH OLIVER.

. Witnesses:

HAROLD O. VAN ANTWERP, MINNIE THO PSON.

in presence 

